package com.web.observers;

import java.util.Observable;
import java.util.Observer;

/**
 * @Author: wws
 * describe:
*/
public class DataObservable extends Observable {

    @Override
    public void notifyObservers(Object arg) {
        super.setChanged();
        super.notifyObservers(arg);
    }

    @Override
    public synchronized void addObserver(Observer o) {
        super.addObserver(o);
    }


}
